/Engine/Plugins/FX/Niagara/Source/Niagara/Classes/NiagaraEmitter.h
void MoveSimulationStageToIndex ( [UNiagaraSimulationStageBase](API\Plugins\Niagara\UNiagaraSimulationStageBase) * SimulationStage, int32 TargetIndex, [FGuid](API\Runtime\Core\Misc\FGuid) EmitterVersion )